ES482283A1 - Circuit arrangement for detecting a switching phase - Google Patents
Circuit arrangement for detecting a switching phaseInfo
- Publication number
- ES482283A1 ES482283A1 ES482283A ES482283A ES482283A1 ES 482283 A1 ES482283 A1 ES 482283A1 ES 482283 A ES482283 A ES 482283A ES 482283 A ES482283 A ES 482283A ES 482283 A1 ES482283 A1 ES 482283A1
- Authority
- ES
- Spain
- Prior art keywords
- detecting
- circuit arrangement
- signal
- switching phase
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/87—Regeneration of colour television signals
- H04N9/873—Regeneration of colour television signals for restoring the colour component sequence of the reproduced chrominance signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
- H04N9/7917—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being cross-talk signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/83—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
- H04N9/84—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
As is known the phase of the chrominance signal is changed in a specific rhythm for the elimination of cross-talk during recording on a magnetic tape, spurious signals being cancelled via a comb filter. By means of an inverse combination stage after the comb filter an opposite signal is obtained, which with the normal output signal yields a correction signal via a differential amplifier in the case of an incorrect demodulation phase.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2830168A DE2830168C2 (en) | 1978-07-08 | 1978-07-08 | Circuit arrangement for detecting a switchover phase position |
Publications (1)
Publication Number | Publication Date |
---|---|
ES482283A1 true ES482283A1 (en) | 1980-03-01 |
Family
ID=6043935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES482283A Expired ES482283A1 (en) | 1978-07-08 | 1979-07-06 | Circuit arrangement for detecting a switching phase |
Country Status (11)
Country | Link |
---|---|
US (1) | US4277795A (en) |
JP (1) | JPS5514793A (en) |
AT (1) | AT378650B (en) |
AU (1) | AU527628B2 (en) |
CA (1) | CA1140256A (en) |
DE (1) | DE2830168C2 (en) |
ES (1) | ES482283A1 (en) |
FR (1) | FR2430702A1 (en) |
GB (1) | GB2027315B (en) |
IT (1) | IT1118796B (en) |
NL (1) | NL7905202A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56112190A (en) * | 1980-02-08 | 1981-09-04 | Sanyo Electric Co Ltd | Signal recording circuit |
JPS57124986A (en) * | 1981-01-26 | 1982-08-04 | Victor Co Of Japan Ltd | Color video signal reproducing device |
DE3939520A1 (en) * | 1989-11-30 | 1991-06-06 | Nokia Unterhaltungselektronik | CIRCUIT TO RECOVER THE CHROMA SIGNAL |
DE4115213A1 (en) * | 1991-05-10 | 1992-11-12 | Nokia Deutschland Gmbh | COMB FILTER SWITCHING IN THE PLAYBACK COLOR CHANNEL OF A VIDEO RECORDER |
DE4415981A1 (en) * | 1994-05-06 | 1995-11-09 | Thomson Brandt Gmbh | Color television receiver with PALplus operation |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3721753A (en) * | 1970-10-26 | 1973-03-20 | Sony Corp | Color television receiver |
DE2216564C3 (en) * | 1971-04-14 | 1979-09-06 | N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) | Color television receiver circuit for obtaining the correct switching phase of a chrominance signal |
GB1428973A (en) * | 1972-07-20 | 1976-03-24 | Emi Ltd | Circuit arrangements for colour television receivers |
GB1541228A (en) * | 1975-05-20 | 1979-02-28 | Rca Corp Pal | Alternate line colour phase detector |
US4024571A (en) * | 1975-08-14 | 1977-05-17 | Rca Corporation | Synchronizing system employing burst crossover detection |
IT1077241B (en) * | 1976-06-30 | 1985-05-04 | Rca Corp | SYSTEM FOR THE REGISTRATION OF COLOR REPRESENTATIVE INFORMATION, CONTAINED IN THE COMPOSITE TELEVISION SIGNALS |
-
1978
- 1978-07-08 DE DE2830168A patent/DE2830168C2/en not_active Expired
-
1979
- 1979-07-02 AU AU48580/79A patent/AU527628B2/en not_active Ceased
- 1979-07-04 NL NL7905202A patent/NL7905202A/en not_active Application Discontinuation
- 1979-07-05 IT IT68409/79A patent/IT1118796B/en active
- 1979-07-05 CA CA000331187A patent/CA1140256A/en not_active Expired
- 1979-07-05 AT AT0468279A patent/AT378650B/en not_active IP Right Cessation
- 1979-07-05 GB GB7923413A patent/GB2027315B/en not_active Expired
- 1979-07-05 JP JP8449179A patent/JPS5514793A/en active Granted
- 1979-07-06 ES ES482283A patent/ES482283A1/en not_active Expired
- 1979-07-06 FR FR7917637A patent/FR2430702A1/en active Granted
- 1979-07-09 US US06/055,947 patent/US4277795A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS6144438B2 (en) | 1986-10-02 |
IT1118796B (en) | 1986-03-03 |
US4277795A (en) | 1981-07-07 |
DE2830168C2 (en) | 1985-10-24 |
ATA468279A (en) | 1985-01-15 |
CA1140256A (en) | 1983-01-25 |
FR2430702B1 (en) | 1984-12-14 |
IT7968409A0 (en) | 1979-07-05 |
JPS5514793A (en) | 1980-02-01 |
AU527628B2 (en) | 1983-03-17 |
NL7905202A (en) | 1980-01-10 |
DE2830168A1 (en) | 1980-01-17 |
AT378650B (en) | 1985-09-10 |
GB2027315B (en) | 1982-11-17 |
GB2027315A (en) | 1980-02-13 |
FR2430702A1 (en) | 1980-02-01 |
AU4858079A (en) | 1980-01-17 |
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